This is a simple way to make your PDFs more engaging. It can be nothing more than an effect as in this example or made into a button to trigger moving to another page or playing an audio/visual file. In this example the sepia tone background, selected from Kuler, kuler.adobe.com/, interacts with the photos to provide a different look.

Click Here to download example and tutorial.

Steps:

▶▶ Build the page in InDesign

▶▶ Select the Interactivity Workspace 

▶▶ Select an image

▶▶ Select the Effects (fx) panel and choose the Luminosity Blending Mode
For multiple images you may want to drag the Effects panel out of the panel list

▶▶ Select the Button panel. In the example the sepia toned photo is the normal state so click on Normal

▶▶ In the Effects panel, select the Normal Blending Mode

▶▶ Back to the Button panel, select Rollover

▶▶ Repeat for other rollover effects

▶▶ To add more actions to the button, choose Actions in the Buttons panel. Buttons can be used
to navigate to other pages, views, web links, and files as well as show/hide other buttons and play
movies or audio. Multiple actions can be set for each button.

▶▶ File> Export> Adobe PDF, select Interactive Elements and View PDF after Export to test the effect